Stylus-guiding attachment for sound-records.



H. W. ROGERS. STYLUS GUIDING ATTACHMENT FOYR sown RECORDS.

APPLIOATION FILED MAY 20, 1913. 1,112,838, Patented,0ct.6,1914.

2 SHEBTS-SHEET 1.

Attorneys H. W. ROGERS. STYLUS GUIDING ATTACHMENT FOR sown RECORDS. APPLICATION FILED MAY 20, 1913.

1,112,838. Pe ltented 0012.6,1914.

2 SHEETS-SHEBT 2.

Witnesses Attorneys nanmson w.

ROGERS, 0F WHEELING, WEST VIRGINIA, .ASSIGNOR 0F ONE-HALF T0 CHARLES W. EBELI-NG, OF WKEELING, WEST VIRGINIA.

STYLUS-GUIDING ATTACHMENT FDR SOUND-RECORDS.

To all whom timely concern:

Be it known that I, IIARRISON \V. Rooms, a citizen of the United States, residing at \Vheeling, in the county of Ohio and State of West Virginia, have invented a new and useful Stylus-Guiding Attachment for Sound-Records, of which the following is a specification.

The present invention relates to unprovements in stylus guiding and starting attachments for sound records, one object of the invention being the provision of an atwhen therecord carrier is operated at the.

proper timethrough the projector mechanism.

A further object of the present invention is the provision of an attachment carrying a stylus receiving and guiding port on which is so constructed as to be readily adjusted relatively to the sound groove of the record, so that the stylus will be started at a selected point of the groove, and without the necessity of causing the record to be rotated-a plurality of revolutions before the sound wave forming portion of the record is in operable engagement with the stylus.

A still further object of the present 1nvention is the provision of a stylus guiding attachment, which will reinforce the sound record at. the starting point of the phonic groove, in that a metal, orother hard subtance is placed to receive the initial presentation and guiding of the stylus. This substance is provided with means for insuring the direction of the stylus into the sound groove, at its beginning or at any lead in point of such groove. This feature cannot be too greatly emphasized, for

where the record is used in a booth with a Specification of Letters Patent. Application filed May 20. 1913. Serial No. 768,831.

Patented Oct. 6, 1914.

motion picture machine projector, a stylus positioning and guiding means must itself be durable and the record at the starting point must be reinforced to withstand the resulting hard usage. By making the guide a projection above the record surface, a means by which the operator may .feel the position for inserting the stylus in the dim or no light of the booth is afforded, and ,thus at all times is provided means whereby the proper positioning of the stylus is assured.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings Figure 1 is a plan view of a disk record with one form of the present invention applied thereto. Fig. 9. is a fragmentary portion of the disk showing the structure as shown in Fig. 1 u on a larger scale. Fig. 3 is a view simi.ar to Fig. 2 showing a modified construction of the present invention. Fig. 4 is a view similar to Fig. 1 showing another modified construction of stylus guiding and starting device or attachment. Fig. 5 is a side elevation of the device with a portion of the record in elevation. Fig. 6 is a detail view of the pivoted stylus starting and guiding member thereof. Fig. 7 is a section taken on line 77 of Fig. 5.

Refer-ring to the drawings, the numeral 1 designates a disk record, which is provided with the sound grooves 2 and with the central post receiving aperture 3, there being provided, if found necessary, an additional aperture A for the reception of an auxiliary post carried by the disk platform (not shown) to insure the proper rotation of the disk and prevent the slippin thereof as has been found desirable when die present construction .is used in connection with a motion picture projector.

In the form of attachment shown in Figs. 1 and 2, a metal strip or plate 5 is attached by a screw 6 to the outer periphery of the record or at any desired point thereof, such connection forming a pivoting means so that the notch end 7 of such plate may receive the locking screw 8, at any desired adjustment, and the stylus guiding groove 9 of the present device may be directed so that the portion 11 thereof will be disposed to direct the stylus (not shown) .to a selectedpoint of the sound groove 2. The closed' end oi the groove 9 is enlarged, as at 10, for the initial reception of the stylus thus providing an easy means for guiding the point of the stylus into the channel or groove 9 when the sound record is properly positioned upon the carrier portion of the reproducing mech anism'. The; curved wall or outlet portion of the stylus guiding channel or groove 9 is formed so that the centrifugal force of the record in rotating will tend to hold the stylus thereagainst, and as the plate 5 is adjusted so that the end connected at 78 may be moved to and from the sound'groove 2, it is evident that the stylus will be guided into any selected portion of such groove. In order to assist the centrifugal force. in holding the stylus against the outlet portion 11 of the channel 9, the tongue 13 of the plate 5 has disposed in the outer end thereof a flat spring 12, which has a normal tension to close the. channel by engaging the curved portion 11 thereof and thus ofier sufiicient resilient resistance to the stylus-as to hold the same against the plate 5 and thus relieve any tendency offany of the grooves 2 adjacent the periphery of the record from moving the st lus farther into such grooves than is desira le.

In the structure shown in Fig. 3, the stylus guiding attachment 14, is provided with a groove 15 therein for the reception of the point of the stylus, and such groove is 1nelined toward the reduced end thereof so that by means of the two slots 16 and 18, and the securing screws 17 and 19, the plate 14 may be adjustably attached to the peri hery of the-record 1 so that the outlet end of such groove may be positioned to direct the stylus to any selected point in the sound groove 2. In this attachment inasmuch as the pointof the stylus does not ride upon any portion of the record 1 until it is delivered from the outlet end of the groove 15 into the sound groove of the record, it is apparent that there is no necessity for the employment of a as the spring 12 in the structure shown in Figs. 1 and 2, it simply being necessary to adjust the screws 17 and 19, so that the outlet end of the groove 15 is properly positioned relatively to the desired or SBlGCt ed point of the sound groove of the record.

In the form ofattachment shown in Figs. 4, 5, 6 and 7, two apertured lugs 20 are pro vided and are secured to the disk 1 through the two screws 21, the plate 22 carried by locking misses through the aperture 26 of the stylus guiding pivoted member 27. This member 27,

as clearly shown in Figs. 4 and 6, ispro-' 'vided with the stylus receiving notch or} recess 28, the walls of which are inclined, to properly receive the point of the stylusand direct the same to any selected point of the sound groove 2. It will thus be seen that by adjusting the screw 24, the guiding recess 28 may be positioned at any desired point relatively to the sound groove 2, and that when the disk is properly rotating, that the stylus will be engaged by the side of the pivoted member 27 opposite to the groove upon the first rotation of the disk, and that due to the pivoting of such member at 25- 26, the same will be flexible or moved tothe dotted 'line position Fig, 4, and thus be automatically placed out of the path of the styliuskduring the continuous rotation of the In order to provide a means vfor locking the adjusting screw 24 in anydesired adjustment, and thus making the guide a permanent guide relatively to the sound groove 2 of a particular record, a threaded sleeve 29 is in communication with the sleeve 23, and has disposed therein a set or screw 30. This screw 30 is dis posed to engage the adjusting screw at the junction of the two sleeves and "thus lock the same against longitudinal and rotary movements.

From the foregoing description, taken in connection with the drawings, it is evident that the present attachment may be readily attached to any record and that due to the stylus receiving and gui'din means thereof, such means may be adjusts to any point of the record so that the point of entry of the stylus into the sound groove may be selected, and such selected point made permanent as long as the guiding and starting device of the attachment is heldin such adjustment.

It is also apparent that with the present attachment, 'itis unnecessary to rotate the disk a predetermined number of times before the stylus enters. the selected point of the sound groove, and thatby means of the same, any point of the sound of selection and such device may be readilygroove may be the point attached to any record,

it will thus be seen that all of the present guides are adjustable transversely of the phonic groove, thus permitting the device to be easily attached to and ositioned upon sound records, the same atter being once set and clamped in place reinforcing the record at the starting point of the phonic groove and by reason of the fact that the 24 has disposed in its guiding groove or slot is placed as a con- 1. The combination with a sound record a disk, of a plate provided with a stylus guidi of a stylus guiding device,

ing means, means for pivotally connecting one end of the plate to the-disk, and means for locking the plate in adjusted position, whereby the stylus guiding means of the plate may be positioned to guide the stylus into a selected pointof the phonic groove.

2. The combination with a sound record, of a plate provided with a stylus guiding means, means to adjustably attach the plate to the record, and means for coaction with the guiding means to insure the positioning of the stylus in a selected point of a sound groove.

3. The combination with a sound record, including a plate having a slot therein forming a tongue upon the side adjacent the phonic groove of the record, means for securing the end of the plate adjacent the closed end of the slot as the hinging point of the plate to the record, and means for adjustably securing the free end of the plate to the record to position the outlet of the slot relatively to a selected point of the phonic groove of the record.

4. The combination with a sound record, of a stylus guiding device for guiding a stylus to a selected point of the phonic groove of the record, including a plate provided with a stylus receiving slot therein, said slot providing a tongue upon the inner side of the plate, a resilient member carried by the free end of the tongue and having a tension toward the plate to assist in holding the stylus against the adjacent wall of the slot of the plate during the rotation of the disk, means for pivotally connecting the end of the plate adjacent the closed end of the slot to the record to permit the slot-ted end movement relatively to the phonic groove, and adjustable means for fixedly securing the plate to the record, such adjustment determining the position of the stylus receiving slot and consequently the point at which the stylus enters the phonic groove of the record.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

HARRISON W. ROGERS.

Witnesses:

SELINA WILLsoN, I. E. SIMPSON. 

